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Haden has run USC's athletic department for 5½ years, taking over from Mike Garrett in 2010 with a primary mandate to lead the Trojans through a multiyear stretch of NCAA sanctions against its vaunted football program. USC endured a two-year bowl ban, probation and significant scholarship losses for alleged misdeeds surrounding Heisman Trophy-winning tailback Reggie Bush during the tenure of former coach Pete Carroll.

The 63-year-old Haden also persevered through recent health problems and the ongoing saga of coach Steve Sarkisian's firing last fall.

"It has been a tremendous honor serving my alma mater, a school I love so much, as well as serving Max Nikias, our coaches and staff and, most importantly, our student-athletes," Haden said. "I am proud of what has been accomplished here the past six years and knowing that USC Athletics is on an upward trajectory. I look forward to finishing out this academic year as athletic director and then spending time on the Coliseum project."

Haden created a large NCAA compliance program and improved graduation rates and grade point averages across the athletic department. Nikias said Haden's department restored the school's good working relationship with the NCAA while also raising more than $400 million during his tenure.

The former USC quarterback also made a point of encouraging athletes to enjoy their college experience outside of athletics. Overall, Haden took on extraordinary responsibilities for many aspects of the athletic department, and his health declined in recent years.

Pat Haden, who was hired at USC in 2010 after the Trojans were hit with NCAA sanctions, will step down as athletic director on June 30. Kirby Lee/USA TODAY Sports

"He took on this role at a time when the department faced unprecedented pressure, externally and internally, requiring nothing less than a Herculean effort to rebuild its foundation for the long term," said Nikias, a close friend who started his job on the same day Haden took over the department.

Haden cited unspecified health concerns when he stepped down from the College Football Playoff committee in October, two weeks after he felt light-headed and required medical assistance on the sideline during USC's football game at Notre Dame. The AD wasn't specific about his health problem, but he has a pacemaker.

Haden made four football head-coaching changes during his tenure, starting when he fired Lane Kiffin at the airport five games into the 2013 season. Ed Orgeron and Clay Helton held the job on an interim basis before Haden chose Sarkisian, only to fire the former USC assistant last season.

Haden has endured criticism for the powerful football program's relative underachievement, winning no Pac-12 titles during his tenure. The school also is still extricating itself from the tenure of Sarkisian, who has sued the university.

Sarkisian asserts that he should have been allowed to keep his job while seeking treatment for alcohol abuse, but Haden fired Sarkisian in October and eventually promoted Helton to the full-time job. Haden made the move before the Pac-12 title game, bypassing the chance to pursue higher-profile candidates during bowl season.

Haden's choice of Andy Enfield to lead the men's basketball program also wasn't universally lauded, but the Trojans are 18-5 and off to their best start since 1992 after routing UCLA 80-61 on Thursday.

USC has won 10 national championships in other sports during Haden's past five years, second only to the University of Florida in that span.